That light comes on every 12-15k miles to remind you that it is past time
to change the oil. The oil change tech is supposed to reset that button
every time they change the oil. Some cars have a hidden switch somewhere
to reset the oil change timer. In some other cars, it takes a certain
combination of turning on/off the ignition, flooring the gas pedal, or even
opening the drivers door!
No idea on the Tacoma
Steve
>what I'd like to know is why it goes on to begin with. it isn't mileage,
>I've checked. the oil is changed at 3000 miles, and so as far as I can
>tell it isn't a sensor in the oil. it seems to go off about every 12-15k
>miles, though sometimes it seems sooner.
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